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<div class="titlepage"><div><div>
<h2 class="title">
<a id="release-notes-7.2.1"></a>Elasticsearch version 7.2.1<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.2.asciidoc">edit</a>
</h2>
</div></div></div>
<p>Also see <a class="xref" href="breaking-changes-7.2.html" title="Breaking changes in 7.2">Breaking changes in 7.2</a>.</p>
<h3>
<a id="enhancement-7.2.1"></a>Enhancements<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.2.asciidoc">edit</a>
</h3>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
Infra/Core
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Add default CLI JVM options <a href="https://github.com/elastic/elasticsearch/pull/44545" class="ulink" target="_top">#44545</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/42021" class="ulink" target="_top">#42021</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Infra/Plugins
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Do not checksum all bytes at once in plugin install <a href="https://github.com/elastic/elasticsearch/pull/44649" class="ulink" target="_top">#44649</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/44545" class="ulink" target="_top">#44545</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Machine Learning
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Improve message when native controller cannot connect <a href="https://github.com/elastic/elasticsearch/pull/43565" class="ulink" target="_top">#43565</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/42341" class="ulink" target="_top">#42341</a>)
</li>
<li class="listitem">
Introduce a setting for the process connect timeout <a href="https://github.com/elastic/elasticsearch/pull/43234" class="ulink" target="_top">#43234</a>
</li>
</ul>
</div>
</dd>
</dl>
</div>
<h3>
<a id="bug-7.2.1"></a>Bug fixes<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/release-notes/7.2.asciidoc">edit</a>
</h3>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
Analysis
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Issue deprecation warnings for preconfigured delimited_payload_filter <a href="https://github.com/elastic/elasticsearch/pull/43684" class="ulink" target="_top">#43684</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/26625" class="ulink" target="_top">#26625</a>, <a href="https://github.com/elastic/elasticsearch/issues/43568" class="ulink" target="_top">#43568</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Authentication
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix credential encoding for OIDC token request <a href="https://github.com/elastic/elasticsearch/pull/43808" class="ulink" target="_top">#43808</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43709" class="ulink" target="_top">#43709</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Data Frame
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Reorder format priorities in dest mapping <a href="https://github.com/elastic/elasticsearch/pull/43602" class="ulink" target="_top">#43602</a>
</li>
<li class="listitem">
Adjust error message <a href="https://github.com/elastic/elasticsearch/pull/43455" class="ulink" target="_top">#43455</a>
</li>
<li class="listitem">
Size the GET stats search by number of Ids requested <a href="https://github.com/elastic/elasticsearch/pull/43206" class="ulink" target="_top">#43206</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43203" class="ulink" target="_top">#43203</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Distributed
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix DefaultShardOperationFailedException subclass xcontent serialization <a href="https://github.com/elastic/elasticsearch/pull/43435" class="ulink" target="_top">#43435</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43423" class="ulink" target="_top">#43423</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Engine
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
AsyncIOProcessor preserve thread context <a href="https://github.com/elastic/elasticsearch/pull/43729" class="ulink" target="_top">#43729</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/CAT APIs
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix indices shown in _cat/indices <a href="https://github.com/elastic/elasticsearch/pull/43286" class="ulink" target="_top">#43286</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/33888" class="ulink" target="_top">#33888</a>, <a href="https://github.com/elastic/elasticsearch/issues/38824" class="ulink" target="_top">#38824</a>, <a href="https://github.com/elastic/elasticsearch/issues/39933" class="ulink" target="_top">#39933</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/ILM
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Account for node versions during allocation in ILM Shrink <a href="https://github.com/elastic/elasticsearch/pull/43300" class="ulink" target="_top">#43300</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/41879" class="ulink" target="_top">#41879</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Features/Indices APIs
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Check shard limit after applying index templates <a href="https://github.com/elastic/elasticsearch/pull/44619" class="ulink" target="_top">#44619</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/34021" class="ulink" target="_top">#34021</a>, <a href="https://github.com/elastic/elasticsearch/issues/44567" class="ulink" target="_top">#44567</a>, <a href="https://github.com/elastic/elasticsearch/issues/44619" class="ulink" target="_top">#44619</a>)
</li>
<li class="listitem">
Validate index settings after applying templates <a href="https://github.com/elastic/elasticsearch/pull/44612" class="ulink" target="_top">#44612</a> (issues: <a href="https://github.com/elastic/elasticsearch/issues/34021" class="ulink" target="_top">#34021</a>, <a href="https://github.com/elastic/elasticsearch/issues/44567" class="ulink" target="_top">#44567</a>)
</li>
<li class="listitem">
Prevent NullPointerException in TransportRolloverAction <a href="https://github.com/elastic/elasticsearch/pull/43353" class="ulink" target="_top">#43353</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43296" class="ulink" target="_top">#43296</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Infra/Packaging
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Restore setting up temp dir for windows service <a href="https://github.com/elastic/elasticsearch/pull/44541" class="ulink" target="_top">#44541</a>
</li>
<li class="listitem">
Fix the bundled jdk flag to be passed through windows startup <a href="https://github.com/elastic/elasticsearch/pull/43502" class="ulink" target="_top">#43502</a>
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Machine Learning
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix datafeed checks when a concrete remote index is present <a href="https://github.com/elastic/elasticsearch/pull/43923" class="ulink" target="_top">#43923</a>
</li>
<li class="listitem">
Don’t persist model state at the end of lookback if the lookback did not generate any input <a href="https://github.com/elastic/ml-cpp/pull/527" class="ulink" target="_top">#527</a> (issue: <a href="https://github.com/elastic/ml-cpp/issues/519" class="ulink" target="_top">#519</a>)
</li>
<li class="listitem">
Don’t write model size stats when job is closed without any input <a href="https://github.com/elastic/ml-cpp/pull/516" class="ulink" target="_top">#516</a> (issue: <a href="https://github.com/elastic/ml-cpp/issues/394" class="ulink" target="_top">#394</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Mapping
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Prevent types deprecation warning for indices.exists requests <a href="https://github.com/elastic/elasticsearch/pull/43963" class="ulink" target="_top">#43963</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43905" class="ulink" target="_top">#43905</a>)
</li>
<li class="listitem">
Add include_type_name in indices.exitst REST API spec <a href="https://github.com/elastic/elasticsearch/pull/43910" class="ulink" target="_top">#43910</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43905" class="ulink" target="_top">#43905</a>)
</li>
<li class="listitem">
Fix index_prefix sub field name on nested text fields <a href="https://github.com/elastic/elasticsearch/pull/43862" class="ulink" target="_top">#43862</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43741" class="ulink" target="_top">#43741</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Network
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Reconnect remote cluster when seeds are changed <a href="https://github.com/elastic/elasticsearch/pull/43379" class="ulink" target="_top">#43379</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/37799" class="ulink" target="_top">#37799</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
SQL
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix NPE in case of subsequent scrolled requests for a CSV/TSV formatted response <a href="https://github.com/elastic/elasticsearch/pull/43365" class="ulink" target="_top">#43365</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43327" class="ulink" target="_top">#43327</a>)
</li>
<li class="listitem">
Increase hard limit for sorting on aggregates <a href="https://github.com/elastic/elasticsearch/pull/43220" class="ulink" target="_top">#43220</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43168" class="ulink" target="_top">#43168</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Search
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Fix wrong logic in <code class="literal">match_phrase</code> query with multi-word synonyms <a href="https://github.com/elastic/elasticsearch/pull/43941" class="ulink" target="_top">#43941</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43308" class="ulink" target="_top">#43308</a>)
</li>
<li class="listitem">
Fix UOE on search requests that match a sparse role query <a href="https://github.com/elastic/elasticsearch/pull/43668" class="ulink" target="_top">#43668</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/42857" class="ulink" target="_top">#42857</a>)
</li>
<li class="listitem">
Fix propagation of enablePositionIncrements in QueryStringQueryBuilder <a href="https://github.com/elastic/elasticsearch/pull/43578" class="ulink" target="_top">#43578</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43574" class="ulink" target="_top">#43574</a>)
</li>
<li class="listitem">
Fix round up of date range without rounding <a href="https://github.com/elastic/elasticsearch/pull/43303" class="ulink" target="_top">#43303</a> (issue: <a href="https://github.com/elastic/elasticsearch/issues/43277" class="ulink" target="_top">#43277</a>)
</li>
</ul>
</div>
</dd>
<dt>
<span class="term">
Security
</span>
</dt>
<dd>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
SecurityIndexSearcherWrapper doesn’t always carry over caches and similarity <a href="https://github.com/elastic/elasticsearch/pull/43436" class="ulink" target="_top">#43436</a>
</li>
</ul>
</div>
</dd>
</dl>
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